|Pederson - The Glacier Photograph Collection, National Snow and Ice Data Center/World Data Center for Glaciology.|
The retreat of Pedersen Glacier, Alaska. Left: summer 1917. Right: summer 2005. 1917 photo captured by Louis H. Pedersen; 2005 photo taken by Bruce F. Molnia. Credit: The Glacier Photograph Collection, National Snow and Ice Data Center/World Data Center for Glaciology.
Keywords: Where -- Argentina
|Puncak Icecap - NASA/JSC/USGS/ISS Crew Earth Observations experiment and the Image Science & Analysis Group.|
Puncak Jaya Glacier in the Irian Jaya province of Indonesia. Left: 1936. Middle: 1972. Right: 2005. Photographed by J.J. Dozy in 1936; by the United States Geological Survey during the Carstensz Glaciers Expeditions in 1972; and by a NASA astronaut on the International Space Station in 2005. Credit: NASA/JSC/USGS/ISS Crew Earth Observations experiment and the Image Science Analysis Group.
Keywords: Where -- Russia
|Matterhorn - Panopticon Gallery, Boston, MA.|
The nearly 15,000-ft-high Matterhorn mountain, located in the Alps on the border between Italy and Switzerland. Left: August 16, 1960 at 9.00 am. Right: August 18, 2005 at 9.10 am. 1960 photo taken by Bradford Washburn; 2005 photo taken by David Arnold. Credit: Panopticon Gallery, Boston, MA.
Keywords: Where -- Turkey
|Canada Mine - NASA/GSFC/METI/ERSDAC/JAROS and the U.S./Japan ASTER Science Team.|
Open pit mines near Fort McMurray in Alberta, Canada. Left: September 22, 2000. Right: July 31, 2007. The oil sands from these mines provide refinery-ready raw crude oil and diesel fuel. Image taken by NASA's Advanced Spaceborne Thermal Emission and Reflection Radiometer ASTER. Credit: NASA/GSFC/METI/ERSDAC/JAROS and the U.S./Japan ASTER Science Team.
Keywords: What -- Shuttle Radar Topography Mission; Where -- Panama; Where -- Costa Rica; Where -- Nicaragua; Where -- El Salvador; Where -- Salvador; Where -- Honduras; Where -- Guatemala; Where -- Belize; Where -- Cuba; Where -- Jamaica
|Banda Aceh - NASA|
The city of Banda Aceh, on the island of Sumatra, before and after the 2004 Indian Ocean earthquake and resulting tsunami. Top: May 14, 2004. Bottom: December 29, 2004, days after the massive wave struck the coastline. Images taken by the Landsat-7 satellite. Courtesy of NASA/USGS/
Keywords: What -- Crater
|AIRS CO2 - NASA/JPL.|
Carbon dioxide levels in our atmosphere are rising. Left: July 2003. Right: July 2007. Both images show the spreading of carbon dioxide around the globe as it follows large-scale patterns of circulation in the atmosphere. The color codes in these two pictures are different in order to account for the carbon dioxide increase from 2003 to 2007. If the color bar for 2003 were to be used for 2007, the resulting 2007 map would be saturated with reddish colors, and the fine structure of the distributi...
Keywords: What -- Earth; Where -- Australia
|Clouds Mexico - NASA/GSFC/JPL, MISR Team.|
Cloud swirls forming patterns around the 1050-meter-high 0.65-mile-high summit on the island of Socorro, Mexico. Left: April 23, 2000. Right: May 9, 2000. These turbulent atmospheric eddies form in the wake of an obstacle, while the surrounding clouds make the vortex patterns visible. To the northeast, much subtler disturbances are associated with the tiny Isla San Benedicto. Both islands are part of a group known as the Revillagigedo Archipelago, and are located about 400 kilometers 250 miles e...
Keywords: Where -- Nigeria; Where -- Cameroon
|Peru Glacier - Glacier Photograph Collection of the National Snow and Ice Data Center/World Data Center for Glaciology.|
Qori Kalis Glacier in Peru. Left: July 1978. Right: July 2004. Photographed by Lonnie G. Thompson. Credit: Glacier Photograph Collection of the National Snow and Ice Data Center/World Data Center for Glaciology.
Keywords: Where -- Haiti; Where -- Dominican Republic
|Aral Sea - NASA.|
The Aral Sea, located in Kazakhstan and Uzbekistan in central Asia. Left: 2000. Middle: 2004. Right: 2009. Once one of the largest inland bodies of salty reservoirs in the world and the second largest sea in Asia, the Aral Sea has shrunk dramatically over the last 30 years. One of the main reasons why is crop irrigation: water has been drawn off by upstream feeder streams. As the sea diminishes, noticeable changes in climate conditions and increasing sandstorms are affecting the area...
Keywords: What -- STEREO; Where -- Australia
|Dust China - NASA/GSFC/LaRC/JPL, MISR Team|
Dust obscuring most of the Liaoning region of China and parts of northern and western Korea. Left: March 23, 2002, a relatively clear day. Right: April 8, 2002, a day of extremely dusty skies. Storms transport mineral dust from the deserts of China and Mongolia over great distances, as well as pollution from agriculture, industry and power generation. Asian dust has been detected as far away as Colorado...
Keywords: What -- Crater; Where -- Tanzania